Ok. So I've been using it rarely with GBA games but not that much on my Acekard 2.1 and today, I noticed that it wont be detected by my DS Lite (2 DS Lites) nor the GBA Exploader, patched NDS Back Up Tool 3in1 (patched for the plus version) I just hope it's just the battery but it wont get detected anymore. What can I do? I bought this last Feb.28, 2009 and it just "died" now as I switch it from 1 DS Lite to another DS Lite. Anyone having the same problem?